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    <article id="post-vue图片上传和上传之前的压缩" class="article article-type-post" itemscope itemprop="blogPost" data-scroll-reveal>

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      vue上传图片与压缩
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        <a href="/2019/08/07/vue图片上传和上传之前的压缩/" class="article-date">
  <time datetime="2019-08-07T09:31:46.664Z" itemprop="datePublished">2019-08-07</time>
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<p>这其中我一共用了两种做法，推荐<code>第一种</code>，因为第二种在有的苹果手机兼容性不是很好，有时会出现网页奔溃现象</p>
</blockquote>
<h2 id="一、compressorjs-方式"><a href="#一、compressorjs-方式" class="headerlink" title="一、compressorjs 方式"></a>一、compressorjs 方式</h2><a id="more"></a>
<h4 id="1-先下载compressorjs"><a href="#1-先下载compressorjs" class="headerlink" title="1.先下载compressorjs"></a>1.先下载<code>compressorjs</code></h4><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">cnpm install compressorjs --save-dev</span><br></pre></td></tr></table></figure>

<h4 id="2-引入"><a href="#2-引入" class="headerlink" title="2.引入"></a>2.引入</h4><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">import Compressor from <span class="string">'compressorjs'</span>;</span><br></pre></td></tr></table></figure>

<h4 id="3-用法例子"><a href="#3-用法例子" class="headerlink" title="3.用法例子"></a>3.用法例子</h4><h5 id="template"><a href="#template" class="headerlink" title="template"></a>template</h5><figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">template</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">input</span> <span class="attr">type</span>=<span class="string">"file"</span> <span class="attr">ref</span>=<span class="string">"inputer"</span> @<span class="attr">change</span>=<span class="string">"addImg"</span> <span class="attr">accept</span>=<span class="string">"image/*"</span>&gt;</span></span><br><span class="line"> <span class="tag">&lt;/<span class="name">template</span>&gt;</span></span><br></pre></td></tr></table></figure>

<h5 id="js"><a href="#js" class="headerlink" title="js"></a>js</h5><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 添加身份证正面</span></span><br><span class="line">addImg() &#123;</span><br><span class="line">    <span class="keyword">let</span> self = <span class="keyword">this</span>;</span><br><span class="line">    <span class="keyword">let</span> inputDOM = <span class="keyword">this</span>.$refs.inputer;</span><br><span class="line">    <span class="comment">// 通过DOM取文件数据</span></span><br><span class="line">    <span class="keyword">const</span> file = inputDOM.files[<span class="number">0</span>];</span><br><span class="line">    <span class="comment">//如果file为空return出去</span></span><br><span class="line">    <span class="keyword">if</span> (!file) &#123;</span><br><span class="line">        <span class="keyword">return</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">new</span> Compressor(file, &#123;</span><br><span class="line">        quality: <span class="number">0.1</span>,<span class="comment">//压缩质量</span></span><br><span class="line">        success(result) &#123;</span><br><span class="line">            <span class="keyword">const</span> formData = <span class="keyword">new</span> FormData();</span><br><span class="line">            <span class="comment">// The third parameter is required for server</span></span><br><span class="line">            formData.append(<span class="string">'file'</span>, result, result.name);</span><br><span class="line">       <span class="comment">//上传图片</span></span><br><span class="line">            <span class="keyword">let</span> params = formData;</span><br><span class="line">            uploadimg(params).then(<span class="function"><span class="params">r</span> =&gt;</span> &#123;</span><br><span class="line">				</span><br><span class="line">            &#125;);</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;);</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p><a href="https://www.npmjs.com/package/compressorjs" target="_blank" rel="noopener">compressorjs 参考链接</a></p>
<h2 id="二、image-compressor方式"><a href="#二、image-compressor方式" class="headerlink" title="二、image-compressor方式"></a>二、image-compressor方式</h2><h4 id="1-先下载"><a href="#1-先下载" class="headerlink" title="1.先下载"></a>1.先下载</h4><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">cnpm install image-compressor.js --save-dev</span><br></pre></td></tr></table></figure>

<h4 id="2-再引入"><a href="#2-再引入" class="headerlink" title="2.再引入"></a>2.再引入</h4><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">import ImageCompressor from <span class="string">'image-compressor.js</span></span><br></pre></td></tr></table></figure>

<h4 id="3-用法例子-1"><a href="#3-用法例子-1" class="headerlink" title="3.用法例子"></a>3.用法例子</h4><h5 id="template-1"><a href="#template-1" class="headerlink" title="template"></a>template</h5><figure class="highlight d"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">&lt;<span class="keyword">template</span>&gt;</span><br><span class="line">    &lt;input type=<span class="string">"file"</span> <span class="keyword">ref</span>=<span class="string">"inputer"</span> <span class="keyword">@change</span>=<span class="string">"addImg"</span> accept=<span class="string">"image/*"</span>&gt;</span><br><span class="line"> &lt;/<span class="keyword">template</span>&gt;</span><br></pre></td></tr></table></figure>

<h5 id="js-1"><a href="#js-1" class="headerlink" title="js"></a>js</h5><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 添加身份证正面</span></span><br><span class="line">addImg() &#123;</span><br><span class="line">    <span class="keyword">let</span> self = <span class="keyword">this</span>;</span><br><span class="line">    <span class="keyword">let</span> inputDOM = <span class="keyword">this</span>.$refs.inputer;</span><br><span class="line">	<span class="keyword">const</span> file = inputDOM.files[<span class="number">0</span>];</span><br><span class="line">    <span class="keyword">if</span> (!file) &#123;</span><br><span class="line">        <span class="keyword">return</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">new</span> ImageCompressor(file, &#123;</span><br><span class="line">        quality: <span class="number">.6</span>,<span class="comment">//压缩质量</span></span><br><span class="line">        success(result) &#123;</span><br><span class="line">            <span class="keyword">const</span> formData = <span class="keyword">new</span> FormData();</span><br><span class="line">            formData.append(<span class="string">'file'</span>, result, result.name);</span><br><span class="line">            <span class="keyword">let</span> params = formData;</span><br><span class="line">            uploadimg(params).then(<span class="function"><span class="params">r</span> =&gt;</span> &#123;</span><br><span class="line"></span><br><span class="line">            &#125;);</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;);</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p><a href="https://www.jianshu.com/p/3ce3e3865ae2" target="_blank" rel="noopener">image-compressor参考链接</a></p>

      
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